Regressions on native/releases/gcc-14 at commit r14-12655 vs commit r14-12640 on Linux/x86_64

Haochen Jiang via Gcc-regression <[email protected]> Thu, 11 Jun 2026 11:35:08 +0800

Newsgroups	gmane.comp.gcc.regression
Message-ID	<[email protected]>

Regressions on releases/gcc-14 at commit r14-12655 vs commit r14-12640 on Linux/x86_64
New failures:
FAIL: c-c++-common/tsan/fd_pipe_race.c   -O2  output pattern test
FAIL: c-c++-common/tsan/mutexset1.c   -O2  output pattern test
FAIL: c-c++-common/tsan/pr65400-1.c   -O2  output pattern test

New passes:
FAIL: c-c++-common/tsan/free_race.c   -O2  output pattern test
FAIL: c-c++-common/tsan/mutexset1.c   -O0  output pattern test
FAIL: c-c++-common/tsan/pr65400-1.c   -O0  output pattern test
FAIL: c-c++-common/tsan/pr65400-3.c   -O0  output pattern test
FAIL: c-c++-common/tsan/pr65400-3.c   -O0  output pattern test
FAIL: c-c++-common/tsan/pr65400-3.c   -O2  output pattern test
FAIL: c-c++-common/tsan/pr68260.c   -O0  execution test
FAIL: c-c++-common/tsan/pr68260.c   -O2  execution test
FAIL: c-c++-common/tsan/race_on_barrier2.c   -O0  output pattern test
FAIL: c-c++-common/tsan/race_on_barrier2.c   -O2  output pattern test
FAIL: c-c++-common/tsan/race_on_barrier2.c   -O2  output pattern test
FAIL: c-c++-common/tsan/race_on_barrier.c   -O0  output pattern test
FAIL: c-c++-common/tsan/race_on_barrier.c   -O2  output pattern test
FAIL: c-c++-common/tsan/race_on_mutex2.c   -O0  output pattern test
FAIL: c-c++-common/tsan/race_on_mutex.c   -O0  output pattern test
FAIL: c-c++-common/tsan/race_on_mutex.c   -O2  output pattern test
FAIL: g++.dg/tsan/vptr_benign_race.C   -O0  execution test
FAIL: g++.dg/tsan/vptr_benign_race.C   -O2  execution test
FAIL: g++.dg/tsan/vptr_harmful_race.C   -O0  output pattern test
FAIL: g++.dg/tsan/vptr_harmful_race.C   -O2  output pattern test